Effusion and hydrocele are the same concept, but they are called differently according to personal habits. Fluid accumulation in the fallopian tubes is due to inflammatory reaction caused by pathogenic infection of the fallopian tubes, infiltration of inflammatory cells, edema, exudation, together with shedding cells of the mucosal epithelium of the fallopian tubes, secretion accumulation in the fallopian tubes, or because the fallopian tubes are affected by pelvic inflammation, local adhesions of the fallopian tubes, followed by blockage of pus accumulation, when the pus cells in the lumen of the tubes are absorbed, watery fluid will be left. When the pus cells in the lumen are absorbed, it will leave behind watery fluid. Clinically, watery shadow is shown when imaging is done. There are many causes of tubal effusion, such as repeated abortions, medication abortions, frequent sexual intercourse or intercourse during menstruation, untimely treatment of inflammation of pelvic organs or inflammation of adjacent genital organs. The symptoms of tubal effusion include abdominal pain, abdominal cramping and increased discharge, and in severe cases, infertility. Most of them can be treated by interventional surgery and most of them can be cured after treatment. Pay attention to a light diet, do not eat spicy and stimulating food, pay attention to vulva hygiene, and actively participate in physical exercise to enhance body resistance. In conclusion, it is important to treat tubal effusion promptly after examination.